| 摘要 |
The invention relates to a method for testing tamper protection of a field device, comprising the following steps: arrangement of at least one test element in the material of a housing of the field device, first supply of the test element with a first test signal, first measurement of the first test signal for determining a physical fingerprint, storage of the physical fingerprint, second supply of the test element with a second test signal, second measurement of the second test signal, comparison of the second test signal with the physical fingerprint and, if the second test signal deviates from the physical fingerprint, output of a tamper signal. The invention also relates to a field device having tamper protection. |
